/*
 * Copyright 2017-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example;

import java.util.List;
import java.util.Set;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

/**
 * A transactional service that provides methods run as transactions.
 *
 * @author Chengyuan Zhao
 */
public class TransactionalRepositoryService {

	@Autowired
	private SingerRepository singerRepository;

	@Transactional
	public void createAndSaveSingerRelationshipsInTransaction(Singer singer,
			Band firstBand, List<Band> bands, Set<Instrument> instruments) {

		singer.setFirstBand(firstBand);
		singer.setBands(bands);
		singer.setPersonalInstruments(instruments);

		this.singerRepository.save(singer);

		System.out.println(
				"Relationship links were saved between a singer, bands, and instruments"
						+ " in a single transaction: " + singer);
	}

}
